Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean Sea

12 pages, 5 figures, 2 tables

Detalles Bibliográficos
Autores: Pinhassi, Jarone, Gómez-Consarnau, Laura, Alonso-Sáez, Laura, Sala, M. Montserrat, Vidal, Montserrat, Pedrós-Alió, Carlos, Gasol, Josep M.
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/27229
Acceso en línea:http://hdl.handle.net/10261/27229
Access Level:acceso abierto
Palabra clave:Marine bacteria
Nutrients
Bioassays
Seasonal variability
Diversity
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spelling Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean SeaPinhassi, JaroneGómez-Consarnau, LauraAlonso-Sáez, LauraSala, M. MontserratVidal, MontserratPedrós-Alió, CarlosGasol, Josep M.Marine bacteriaNutrientsBioassaysSeasonal variabilityDiversity12 pages, 5 figures, 2 tablesBacterioplankton growth is expected to depend on the availability of organic and inorganic nutrients. Still, no studies have investigated how the magnitude and type of nutrient limitation experienced by marine bacteria change on a temporal scale. We carried out a series of nutrient enrichment experiments to examine the variability in nutrient limitation of bacteria in the NW Mediterranean Sea, at monthly intervals, over an 18 mo period. Short-term enrichment bioassays (24 h incubation) showed that bacterial P limitation could occur throughout the year, but was most pronounced during spring and summer, coinciding with very low concentrations of dissolved inorganic phosphorus and chlorophyll a, and higher N:P ratios. During the non-stratified period in autumn and winter, bacteria were at times strongly C limited. Inorganic nitrogen limitation was not detected at any time. Long-term bioassays with and without enrichment, where growth was monitored until stationary phase using the seawater dilution culture approach, largely confirmed the results from the short-term bioassays. Analysis of the bacterial assemblages in these cultures, using denaturing gradient gel electrophoresis (DGGE) and 16S rRNA gene sequencing, suggested that the growth of some central components of the native bacterioplankton assemblage (i.e. specific Roseobacter and Flavobacteria phylotypes) was restricted due to the limited availability of P in spring and summer. We conclude that seasonal variability in the type and severity of nutrient limitation can substantially contribute to the regulation of bacterioplankton growth and community composition, and thereby affect the turnover of dissolved organic matter and inorganic nutrients in the seaThis work was supported by the Swedish Science Council (project 621-2003-2692, to J.P.), and the Spanish MCyT projects MicroDiff (REN2001-2120/MAR) and MODIVUS (CTM2005-04795/MAR), and the EU project BASICS (EVK3-CT-2002-00078) to J.M.G.Peer reviewedInter Research201020102006info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65015867 bytesapplication/pdfhttp://hdl.handle.net/10261/27229reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3354/ame044241info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/272292026-05-22T06:33:51Z
dc.title.none.fl_str_mv Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean Sea
title Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean Sea
spellingShingle Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean Sea
Pinhassi, Jarone
Marine bacteria
Nutrients
Bioassays
Seasonal variability
Diversity
title_short Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean Sea
title_full Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean Sea
title_fullStr Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean Sea
title_full_unstemmed Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean Sea
title_sort Seasonal changes in bacterioplankton nutrient limitation and their effects on bacterial community composition in the NW Mediterranean Sea
dc.creator.none.fl_str_mv Pinhassi, Jarone
Gómez-Consarnau, Laura
Alonso-Sáez, Laura
Sala, M. Montserrat
Vidal, Montserrat
Pedrós-Alió, Carlos
Gasol, Josep M.
author Pinhassi, Jarone
author_facet Pinhassi, Jarone
Gómez-Consarnau, Laura
Alonso-Sáez, Laura
Sala, M. Montserrat
Vidal, Montserrat
Pedrós-Alió, Carlos
Gasol, Josep M.
author_role author
author2 Gómez-Consarnau, Laura
Alonso-Sáez, Laura
Sala, M. Montserrat
Vidal, Montserrat
Pedrós-Alió, Carlos
Gasol, Josep M.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Marine bacteria
Nutrients
Bioassays
Seasonal variability
Diversity
topic Marine bacteria
Nutrients
Bioassays
Seasonal variability
Diversity
description 12 pages, 5 figures, 2 tables
publishDate 2006
dc.date.none.fl_str_mv 2006
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/27229
url http://hdl.handle.net/10261/27229
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3354/ame044241
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 5867 bytes
application/pdf
dc.publisher.none.fl_str_mv Inter Research
publisher.none.fl_str_mv Inter Research
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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